Beijing Keyifeng (KYF) Biotech Develop. Co., Ltd.,founded in August 2000, is a high-tech enterprise integrating R&D, production and marketing into whole. The company situated at the industrial area of Tongzhou District, Beijing city, covers an area of 22000 m2, consists of 1 pilot plant, 3 multipurpose manufacturing plant (2 chemical synthesis, 1 bio-synthesis) and 1 power-supply plant, with the support of necessary advanced instruments for QC/QA, microbial and chemical R&D lab as well as several functional sectors. Following years of expansion and development, Beijing Keyifeng has become a leader in the R&D and production of steroids API and its intermediates. According to market request abroad, leading by R&D and emphasizing in commercialization of novel products and process innovation, KYF has over twenty products available and has developed into a based on R&D and manufacturing, comprehensive and strength entity. As a US FDA approved and GMP certificated enterprise, KYF’s high potency products such as Levonorgestrel, Ethinylestradiol, Desogestrel, Gestodene, Estriol, Trenbolone Acetate, Norgestimate, Altrenogest, Lynestrenol, Melengestrol Acetate, Estradiol, etc. have been supplied to Europe, North/South America, Asian-Pacific, Hong Kong, Taiwan and other countries/areas. With business essence based on products quality, abiding by enterprise prestige and aiming at both win, KYF will sincerely serve for all domestic and oversea customers.